Search results

1. Variations in condition indices of mackerel icefish at South Georgia from 1972 to 1997

   : (i) direct estimates of krill density from acoustic surveys (Brierley et al., 1999); and (ii) indirect ... et al., (1999) was compared wit11 C, obtained from fish caught in the same month as the krill ... to local krill availability (Reid et al., 1999). These parameters are considered to be integrating over ... and I. Everson. 1999. Acoustic estimates of krill density at South Georgia, 1981 to 1998. CCAMLR Science. 6: 47 ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 119–132 : Author(s): Everson, I. and K.-H. Kock

2. A composite recruitment index to describe interannual changes in the population structure of Antarctic krill at South Georgia

   CCAMLR Science, Vol. 6 (1999): 71-84 A COMPOSITE ... techniques have recently become available (Brierley et al., 1999). In addition, qualitative descriptions ... (Reid et al., 1999) and some estimates of proportional recruitment index have been obtained from ... -density distribution. (ii) Brierley et al. (1999) presented acoustic density estimates ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 71–84 : Author(s): Watkins, J.L

3. Fitting Euphausia superba into Southern Ocean food-web models: a review of data sources and their limitations

   ., 1999; Hopkins et al., 1993a, 1993b; Stowasser et al., 2012); (ii) the species is a potentially ... ; Lascara et al., 1999; Fielding et al., 2012). It is uncertain whether krill occupy all components ... and performance of krill- dependent predators (e.g. Agnew, 1997; Croxall et al., 1999; Forcada et al., 2006, 2008 ... krill predator diets have been used to identify krill recruitment pulses (Reid et al., 1999 ...

   Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 219–245 : Author(s): A. Atkinson, S. Nicol, S. Kawaguchi, E. Pakhomov, L. Quetin, R. Ross, S. Hill, C. Reiss, V. Siegel, G. Tarling (submitted to the 2008 Joint CCAMLR-IWC Workshop)

4. Estimating optimal observer coverage in the Antarctic krill fishery

   scientific observers have been placed on krill vessels in the Atlantic sector at least since the 1999/2000 ... consistent with those reached by Babcock and Pikitch (2003) and others (e.g. Karp and McElderry, 1999 ... lead to unac- ceptable levels of imprecision or bias (e.g. Hall, 1999). From Figure 1 it can ... consistency of local krill populations (Reid et al., 1999) this may not hold true for other CCAMLR subareas ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 139–154 : Author(s): Agnew, D.J., P. Grove, T. Peatman, R. Burn and C.T.T. Edwards

5. Options for allocating the precautionary catch limit of krill among small-scale management units in the Scotia Sea

   ., 1999; Boyd and Murray, 2001). While it may be preferable to index krill biomass and/or hydrographic ... that the estimate of krill density for 1999/2000 in the South Shetland Islands was taken from the time series ... 1997/98 21.4 5131 –5.047 60.2 2.548 –4.611 1998/99 12.0 5420 –4.747 14.8 2.415 –4.716 1999/2000 12.3 ... biomass density from Brierley et al. (1999) and unpublished data held by the British Antarctic Survey ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 81–97 : Author(s): Hewitt, R.P., G. Watters, P.N. Trathan, J.P. Croxall, M.E. Goebel, D. Ramm, K. Reid, W.Z. Trivelpiece and J.L. Watkins

6. Age–length composition of mackerel icefish (Champsocephalus gunnari, Perciformes, Notothenioidei, Channichthyidae) from different parts of the South Georgia shelf

   a fishery is operating or not. As a result of this, as well as the species' ability to live not only ... cm plus) (Frolkina, 1999). All age estimates were adjusted according to the Southern Hemisphere ... 2+) entered the stock targeted by the commercial fishery (Frolkina, 1999) (Figure 1). individuals of 15-25 ... to the cominercial stock at age 3 (Figure 3), i.e. at the age of first spawning (Frolkina, 1999). Compared ... towards the northeast, artd from the southwest towards the west (Frolkina, 1999). The In catches from ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 133–146 : Author(s): Frolkina, G.A

7. Spawning locations of mackerel icefish at South Georgia

   season. These provisions were considered by Parlces (2000), and reviewed during the 1999 meeting ... in Everson et al. (1999). For the analyses reported here, all maturity stage data were standardised ... to the northeast side of the island put forward by Frolkina (1999). Even though there is a strong case ... is supported by the results of Frolkina (1999). The results froin the inshore trammel net catches match ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 107–118 : Author(s): Everson, I., A.W. North, A. Paul, R. Cooper, N.C. McWilliam and K.-H. Kock

8. Significant intra-annual variability in krill distribution and abundance at South Georgia revealed by multiple acoustic surveys during 2000/01

   (see Brierley et al., 1999 for a summary of all surveys). In order to maintain the time series ... , apparent interannual variability (e.g. Brierley et al., 1999) may simply refl ect aliasing of shorter ... fl ux along the island’s north coast (cf. Watkins et al., 1999; Brandon et al., 1999, 2000 ... Brierley et al., 1999), and that acceptable survey precision could be ob- tained from only four transects ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 71–82 : Author(s): Brierley, A.S., C. Goss, S.A. Grant, J.L. Watkins, K. Reid, M. Belchier, I. Everson, M.J. Jessop, V. Afanasyev and J. Robst

9. [node:field-journal-volume]:37-51

   from 1999 was confi rmed as being solely M. whitsoni, based on otolith comparisons and the geographic ... ont été identifi ées, Macrourus whitsoni et M. holotrachys. En 1999, il avait été déclaré, sur la ... и M. holotrachys. На основании сравнений отолитов и географического происхождения образца 1999 г., возраст ... whitsoni y M. holotrachys. Se confi rmó que una muestra recolectada en 1999, y a la cual se le había ...

   Science Journal Paper : 37–51

10. Analysis of trends in Japanese krill fishery CPUE data, and its possible use as a krill abundance index

    framework (Verbyla et al., 1999). The minimal (signifi cant) fi xed-effect model was determined ... (Verbyla et al., 1999). The LMM was fi tted to the log10 transformed values of CPD, CPT and CPTT while ... ) and South Georgia area (Brierley et al., 1999; Wafy et al., 2003). Scientific surveys CPUE indices ... krill density. On the other hand, acoustic densities for the South Georgia area (Brierley et al., 1999 ...

    Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 1–28 : Author(s): Kawaguchi, S., S. Candy, S. Nicol, K. Taki and M. Naganobu

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